dt-bindings: rtc: qcom-pm8xxx: allow 'wakeup-source' property

The RTC can be used as a wakeup source on at least some platforms so
allow it to be described as such.

Signed-off-by: Johan Hovold <[email protected]>
Acked-by: Rob Herring <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexandre Belloni <[email protected]>

Author: jhovold

Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml

@@ -40,6 +40,8 @@ properties:
     description:
       Indicates that the setting of RTC time is allowed by the host CPU.
 
+  wakeup-source: true
+
 required:
   - compatible
   - reg